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Virginia opossums can vary considerably in size, with larger specimens found to the north of the opossum's range and smaller specimens in the tropics. They measure 33–55 cm (13–22 in) long from their snout to the base of the tail, with the tail adding another 25–54 cm (9.8–21.3 in).
Possums are vectors of bovine tuberculosis (Mycobacterium bovis), which is a major threat to the dairy, beef, and deer farming industries. [8] The disease is endemic in possums across about 38% of New Zealand (known as 'vector risk areas'). In these areas, nearly 70% of new herd infections can be traced back to possums or ferrets.
Dictyocaulus viviparus found in the bronchi of a calf during necropsy (arrow). Parasitic bronchitis, also known as hoose, husk, or verminous bronchitis, [1] is a disease of sheep, cattle, goats, [2] and swine caused by the presence of various species of parasite, commonly known as lungworms, [3] in the bronchial tubes or in the lungs.
Rabies has a long history of association with dogs. The first written record of rabies is in the Codex of Eshnunna (c. 1930 BC), which dictates that the owner of a dog showing symptoms of rabies should take preventive measure against bites. If a person was bitten by a rabid dog and later died, the owner was fined heavily.
Other bird species have been known to develop rabies antibodies, a sign of infection, after feeding on rabies-infected mammals. [40] [41] The virus has also adapted to grow in cells of cold-blooded vertebrates. [42] [43] Most animals can be infected by the virus and can transmit the disease to humans.
These are the most common symptoms of H5N1 bird flu, per the CDC: Eye redness (conjunctivitis) Mild flu-like upper respiratory symptoms. Pneumonia requiring hospitalization. Fever or feeling ...
Since pneumonia can take a dangerous turn, it's important to know the earliest signs of it. Dr. Zweig says that, typically, pneumonia starts as a regular viral upper respiratory infection.
The first patient in the U.S. was hospitalized with "severe" bird flu. Here's what you should know about symptoms, according to an infectious disease expert.